From nobody Sat Feb 7 06:21:39 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 861E43358DE; Wed, 29 Oct 2025 12:25:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761740727; cv=none; b=l9juPqISyvnx5P8YOwMJKllyJBeD/+ZaHMZ/i0G4eJnn1tYveyJWhz4it5Bwo3h26R3m6OoutNl3xLQhAm03jFkbnhiBYg+Qp0JJ3E6ZR3h9QQZXzI2wfCcj3eax/wPwj/Uu86crgGfD798/x1Dc5z2SA3c5ygVvrd3HxXINOY4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761740727; c=relaxed/simple; bh=Jefh0E5wrR69nQhrRe8vhHFWAuKaAVI3adTXCV7rO88=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LrAZEO72pHyTm+ckEmLZuSx3ANoee97Vl3w5qb2sy0nwHAyZYHLXRK2i9wWvWaIGxqZQ9bRF0QobtcCq3XlvkrBRYhhhrMfWos7h499WVh1Ca8NEvSSOfDMX+NrXaZHoHP5vzauS11rK0Z4Q5wZMCJn4raspdYiTWgE/yPjDgMs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GE/Lj65z; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GE/Lj65z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91713C4CEF7; Wed, 29 Oct 2025 12:25:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761740727; bh=Jefh0E5wrR69nQhrRe8vhHFWAuKaAVI3adTXCV7rO88=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=GE/Lj65ztKvWlnc+X7dEWnm7yHQsmO+0JxrznbPQ8lb99PB4x7d4O5RJ6kr2hdSIO dqL+8DDxsOPYtMc0xOJPSYdc5IZIn6+kseZDgz76KouC48o3m0r4NKsBFHt4SpCoVK g0cFqfFZpfOc2djmMbJWAmreo45n/So1h1y91Mhtaan68SUzfpSvs28ODGlMiWmgD5 cG34ozS9XQHgJhpXb4o7+n5X5I+4ODK7THWSfMC/T57u+bpv0vLGileHsY37LqdT4w GnyVbmVtorCIfdtg57cYw6jZix02VSOQbFtPfVoIeJgev3vikT4KnYWQqkL7kTmwl9 Vsp/wNVl0KLDg== From: Christian Brauner Date: Wed, 29 Oct 2025 13:21:10 +0100 Subject: [PATCH v4 57/72] selftests/namespaces: third inactive namespace resurrection test Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251029-work-namespace-nstree-listns-v4-57-2e6f823ebdc0@kernel.org> References: <20251029-work-namespace-nstree-listns-v4-0-2e6f823ebdc0@kernel.org> In-Reply-To: <20251029-work-namespace-nstree-listns-v4-0-2e6f823ebdc0@kernel.org> To: linux-fsdevel@vger.kernel.org, Josef Bacik , Jeff Layton Cc: Jann Horn , Mike Yuan , =?utf-8?q?Zbigniew_J=C4=99drzejewski-Szmek?= , Lennart Poettering , Daan De Meyer , Aleksa Sarai , Amir Goldstein , Tejun Heo , Johannes Weiner , Thomas Gleixner , Alexander Viro , Jan Kara , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, bpf@vger.kernel.org, Eric Dumazet , Jakub Kicinski , netdev@vger.kernel.org, Arnd Bergmann , Christian Brauner X-Mailer: b4 0.15-dev-96507 X-Developer-Signature: v=1; a=openpgp-sha256; l=2704; i=brauner@kernel.org; h=from:subject:message-id; bh=Jefh0E5wrR69nQhrRe8vhHFWAuKaAVI3adTXCV7rO88=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWQysfXL31oj/FXzmp/3n98v17cLnHwz88oLrTtTTv8y2 pMy3Z3td0cpC4MYF4OsmCKLQ7tJuNxynorNRpkaMHNYmUCGMHBxCsBEaq8xMqzf7X7pktSFpa9W RsQ+O7OIXV5sA+/Er89qHs/LrVlf7PyY4Z/dBq85nKeedD/+0jHBrIptA9eXJy87H6g8KJLg2/h 39UlmAA== X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Test SIOCGSKNS with different socket types (TCP, UDP, RAW). Signed-off-by: Christian Brauner --- .../testing/selftests/namespaces/siocgskns_test.c | 65 ++++++++++++++++++= +++- 1 file changed, 63 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/namespaces/siocgskns_test.c b/tools/te= sting/selftests/namespaces/siocgskns_test.c index 0ad5e39b7e16..02798e59fc11 100644 --- a/tools/testing/selftests/namespaces/siocgskns_test.c +++ b/tools/testing/selftests/namespaces/siocgskns_test.c @@ -163,8 +163,7 @@ TEST(siocgskns_keeps_netns_active) /* Wait for child to exit */ waitpid(pid, &status, 0); ASSERT_TRUE(WIFEXITED(status)); - if (WEXITSTATUS(status) !=3D 0) - SKIP(close(sock_fd); return, "Child failed to create namespace"); + ASSERT_EQ(WEXITSTATUS(status), 0); =20 /* Get network namespace from socket */ netns_fd =3D ioctl(sock_fd, SIOCGSKNS); @@ -195,4 +194,66 @@ TEST(siocgskns_keeps_netns_active) ASSERT_LT(ioctl(sock_fd, SIOCGSKNS), 0); } =20 +/* + * Test SIOCGSKNS with different socket types (TCP, UDP, RAW). + */ +TEST(siocgskns_socket_types) +{ + int sock_tcp, sock_udp, sock_raw; + int netns_tcp, netns_udp, netns_raw; + struct stat st_tcp, st_udp, st_raw; + + /* TCP socket */ + sock_tcp =3D socket(AF_INET, SOCK_STREAM, 0); + ASSERT_GE(sock_tcp, 0); + + /* UDP socket */ + sock_udp =3D socket(AF_INET, SOCK_DGRAM, 0); + ASSERT_GE(sock_udp, 0); + + /* RAW socket (may require privileges) */ + sock_raw =3D socket(AF_INET, SOCK_RAW, IPPROTO_ICMP); + if (sock_raw < 0 && (errno =3D=3D EPERM || errno =3D=3D EACCES)) { + sock_raw =3D -1; /* Skip raw socket test */ + } + + /* Test SIOCGSKNS on TCP */ + netns_tcp =3D ioctl(sock_tcp, SIOCGSKNS); + if (netns_tcp < 0) { + close(sock_tcp); + close(sock_udp); + if (sock_raw >=3D 0) close(sock_raw); + if (errno =3D=3D ENOTTY || errno =3D=3D EINVAL) + SKIP(return, "SIOCGSKNS not supported"); + ASSERT_GE(netns_tcp, 0); + } + + /* Test SIOCGSKNS on UDP */ + netns_udp =3D ioctl(sock_udp, SIOCGSKNS); + ASSERT_GE(netns_udp, 0); + + /* Test SIOCGSKNS on RAW (if available) */ + if (sock_raw >=3D 0) { + netns_raw =3D ioctl(sock_raw, SIOCGSKNS); + ASSERT_GE(netns_raw, 0); + } + + /* Verify all return the same network namespace */ + ASSERT_EQ(fstat(netns_tcp, &st_tcp), 0); + ASSERT_EQ(fstat(netns_udp, &st_udp), 0); + ASSERT_EQ(st_tcp.st_ino, st_udp.st_ino); + + if (sock_raw >=3D 0) { + ASSERT_EQ(fstat(netns_raw, &st_raw), 0); + ASSERT_EQ(st_tcp.st_ino, st_raw.st_ino); + close(netns_raw); + close(sock_raw); + } + + close(netns_tcp); + close(netns_udp); + close(sock_tcp); + close(sock_udp); +} + TEST_HARNESS_MAIN --=20 2.47.3